{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "protein", "DNA", "cell line"], "input": "Finally, two other domains, located at positions -460 and -510, interact with proteins that are only present in megakaryocytic cells ."}
{"RNA": [], "protein": [], "DNA": [], "cell line": ["megakaryocytic cells"]}